August weather forecast
Caldwell, AR

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Weather in August

The last month of the summer, August, is also a hot month in Caldwell, Arkansas, with an average temperature fluctuating between 87.4°F (30.8°C) and 70.3°F (21.3°C).

Temperature

Entering August, Caldwell's average high-temperature reads a still tropical 87.4°F (30.8°C), indicating a close resemblance to the previous month's climate. In Caldwell, the average temperature during the nights of August drops to a pleasant 70.3°F (21.3°C).

Heat index

August's mean heat index is calculated to be a sweltering 102.2°F (39°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In August, the average relative humidity is 77%.

Rainfall

In Caldwell, during August, the rain falls for 13.3 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, there are 127.8 rainfall days, and 16.65" (423mm) of precipitation is accumulated.

Snowfall

In Caldwell, snow does not fall in April through September.

Daylight

In August, the average length of the day is 13h and 26min.
On the first day of August, sunrise is at 6:13 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:30 pm CDT.

Sunshine

In Caldwell, the average sunshine in August is 10.3h.

UV index

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, the maximum UV index of 6 transforms into these recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

The high-temperature, in August, in Caldwell, is 87.4°F (30.8°C), while the low-temperature averages to 70.3°F (21.3°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 102.2°F (39°C).

What is the average humidity in August?

In August, the average relative humidity is 77%.

How many days does it rain in August?

In Caldwell, during August, the rain falls for 13.3 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow?

In Caldwell, snow does not fall in April through September.

How many hours of daylight does Caldwell have in August?

The average day length in August is 13h and 26min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:13 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:30 pm CDT.

How many hours of sunshine does Caldwell have in August?

In Caldwell, the average sunshine duration in August is 10.3h.

What is the UV index intensity in August?

In Caldwell, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Caldwell, AR

Average temperature in August - Caldwell, AR
  • Average high temperature in August: 87.4°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in August: 70.3°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

Average pressure in August
Caldwell, AR

Average pressure in August - Caldwell, AR
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Caldwell, AR

Average wind speed in August - Caldwell, AR
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in August
Caldwell, AR

Average humidity in August - Caldwell, AR
  • Average humidity in August: 77%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (67%).

Average rainfall in August
Caldwell, AR

Average rainfall in August - Caldwell, AR
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is April (1.81").
The driest month (with the least rainfall) is September (0.75").

Average rainfall days in August
Caldwell, AR

Average rainfall days in August - Caldwell, AR
  • Average rainfall days in August: 13.3 days

The months with the highest number of rainy days are May, July and August (13.3 days).
The month with the least rainy days is November (7.4 days).

Average snowfall in August
Caldwell, AR

Average snowfall in August - Caldwell, AR
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in August
Caldwell, AR

Average snowfall days in August - Caldwell, AR
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Caldwell, AR

Average daylight in August / Average sunshine in August - Caldwell, AR
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in August
Caldwell, AR

Average sunshine days in August - Caldwell, AR
  • Average sunshine days in August: 14.2 days

The months with the most sunshine days are October and November (21.4 days).
The month with the least sunshine days is August (14.2 days).

Average UV index in August
Caldwell, AR

Average UV index in August - Caldwell, AR
  • Average UV index in August: 6

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in August
Caldwell, AR

Average cloud cover in August - Caldwell, AR
  • Average cloud cover in August: 27

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).

Average visibility in August
Caldwell, AR

Average visibility in August - Caldwell, AR
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Caldwell, Arkansas, USA

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